I’m using mmg3d and need to preserve triangles at the interface between tetrahedra in some domain areas.
e.g., I would like to preserve the green surface in the images:
(both outside and inside the volume delimited by the green surface are present tetrahedrons)
Reading the documentation, the -opnbdy parameter seems to do exactly what I need.
Unfortunately, after the remeshing procedure, the surface is not preserved. Surely I’m doing something wrong but I don’t know what.
Could I get an example of how to use the -opnbdy parameter?
Or, if there is another way to do what I need.
I really appreciate any help you can provide.